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实验部分一仪器与试剂 JF-1A示波极谱仪,使用三电极导数系统。钒标液:称取基准偏钒酸铵0.2296克溶于10毫升盐酸稀释至1升。此液为0.1mgV ml~(-1)用时稀释至所需浓度。
Experimental part of an instrument and reagent JF-1A oscilloscope polarography, the use of three-electrode derivative system. Vanadium standard solution: Weigh the reference ammonium metavanadate 0.2296 grams dissolved in 10 ml hydrochloric acid diluted to 1 liter. This solution is 0.1mgV ml ~ (-1) diluted with time to the desired concentration.